<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView2"
runat="server"
DataSourceID="sourceProducts"
AutoGenerateColumns="False"
DataKeyNames="ProductID">
<Columns>
<asp:BoundField DataField="ProductID" HeaderText="ID" ReadOnly="True" />
<asp:BoundField DataField="ProductName" HeaderText="Product Name"/>
<asp:BoundField DataField="UnitPrice" HeaderText="Price" />
<asp:CommandField ShowEditButton="True" />
</Columns>
</asp:GridView>
<asp:SqlDataSource id="sourceProducts"
runat="server"
SelectCommand="SELECT ProductID, ProductName, UnitPrice FROM Products"
ConnectionString="<%$ ConnectionStrings:Northwind %>"
UpdateCommand="UPDATE Products SET ProductName=@ProductName, UnitPrice=CONVERT(money,@UnitPrice) WHERE ProductID=@ProductID">
</asp:SqlDataSource>
</div>
</form>
</body>
</html>
File: Web.config
<?xml version="1.0"?>
<configuration>
<connectionStrings>
<add name="Northwind" connectionString="Data Source=localhost\SQLEXPRESS;Initial Catalog=Northwind;Integrated Security=SSPI"/>
</connectionStrings>
</configuration>